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Finding the Fourth Proportional to 897.08, 1,237.90 and 504.09

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Solution

The fourth proportional to 897.08, 1,237.90 and 504.09 is: 695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.08 : 1,237.90 = 504.09 : x
  2. Step 2: Convert to fraction form
    897.08/1,237.90 = 504.09/x
  3. Step 3: Cross multiply
    897.08x = 1,237.90 × 504.09
  4. Step 4: Simplify right side
    897.08x = 624,013.01
  5. Step 5: Solve for x
    x = 624,013.01/897.08
  6. Step 6: Final answer
    x = 695.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.